High origin of dorsal branch of the ulnar nerve and variations in its branching pattern and distribution: A case report

Lama, Polly and Potu, Bhagath Kumar and Bhat, Kumar MR (2009) High origin of dorsal branch of the ulnar nerve and variations in its branching pattern and distribution: A case report. Cases Journal, 2 (9130). pp. 1-5.

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Abstract

Introduction: Ulnar nerve is a branch of the brachial plexus. In the front of the forearm, normally near the wrist joint, it gives a dorsal cutaneous branch which supplies the skin of the dorsum of the hand. Case presentation: The present case reports a very rare finding, the dorsal branch of the ulnar nerve along with the main nerve trunk originated between the two heads of the flexor carpi ulnar is muscle, after descending along the medial border of the forearm extensor surface, on the dorsal aspect of the wrist it is divided into three branches, one medial and two lateral. The medial most division received a communicating branch from the superficial ramus of the ulnar nerve and continued as the medial proper digital nerve of the little finger. The lateral two divisions became cutaneous on the medial half of the dorsum of the hand along the medial three digits i.e. radial and ulnar side of little, ring and middle finger. Conclusion: The site, extent of injury, variations and the delay in the treatment, significantly influences the outcome of ulnar nerve repair. Thus, an adequate knowledge of all possible variations in the ulnar nerve may be important for clinicians and may help to explain uncommon symptoms.

Item Type: Article
Subjects: Medicine > KMC Manipal > Anatomy
Depositing User: KMC Manipal
Date Deposited: 29 Jun 2011 10:30
Last Modified: 09 Oct 2013 06:06
URI: http://eprints.manipal.edu/id/eprint/443

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